Update Android.bp by running cargo_embargo am: a2f3430b0a am: 9fab407fd7

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/darling_macro/+/3095284

Change-Id: If618960620c95dce98dbd2f4abb1c43d3d74147d
Signed-off-by: Automerger Merge Worker <[email protected]>